﻿#region The MIT License
// The MIT License
// 
// Copyright (c) 2009 octalforty studios
// 
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
// 
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
#endregion
using System;
using System.Diagnostics;
using octalforty.Chinchillin.Shared.Deployment;
using octalforty.Chinchillin.Shared.Deployment.Metadata;
using System.Linq;

namespace octalforty.Chinchillin.Actions.Db
{
    [Action(Name, RollbackAction = "db:restore-database")]
    public class BackupDatabaseAction : ActionBase
    {
        #region Private Constants
        private const string Name = "backup-database";

        private static readonly ActionInfo actionInfo = new ActionInfo
            {
                Name = Name,
                Description = Resources.Db.BackupDatabaseAction_Description,
                Arguments = new[] { 
                    new ActionArgumentInfo("database", ActionArgumentType.Uri) { Description = Resources.Db.DatabaseAction_DatabaseArgumentDescription },
                    new ActionArgumentInfo("backup-resource", ActionArgumentType.Uri) { Description = Resources.Db.DatabaseAction_DatabaseArgumentDescription }
                }
            };
        #endregion

        public IDbPlatformRegistry DbPlatformRegistry
        { get; set; }

        public BackupDatabaseAction() :
            base(actionInfo)
        {
            
        }

        public override void Execute(IActionExecutionContext executionContext)
        {
            try
            {
                var database = (Uri)executionContext.Arguments["database"];
                var backupResource = ((Uri)executionContext.Arguments["backup-resource"]).AbsolutePath;

                var dbPlatform = DbPlatformRegistry.ResolveDbPlatform(database.Scheme) as IDbPlatformWithBackupSupport;
                if(dbPlatform == null)
                    throw new NotSupportedException(string.Format("Database backups are not supported for '{0}'", database.Scheme));

                var connectionInfo = dbPlatform.GetConnectionInfo(database);

                TracingManager.TraceEvent(executionContext, TraceEventType.Information, 0,
                    string.Format("Backing up Database '{0}' for platform '{1}' to '{2}' using connection string '{3}'",
                    database.Segments.Last(), database.Scheme, backupResource, connectionInfo));

                dbPlatform.BackupDatabase(connectionInfo, backupResource);
            }
            catch(Exception e)
            {
                TracingManager.TraceEvent(executionContext, TraceEventType.Error, 0, e.ToString());
                throw;
            }
        }
    }
}
